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第三十四届中国控制会议

作者： LU Kunfeng XIA Yuanqing YU Chunmei ZHOU Liuyu Beijing Aerospace Automatic Control Institute National key laboratory of science and technology on aerospace intelligent control School of Automation Beijing Institute of Technology Aerospace and Materials Engineering National University of Defense Technology Electrical Engineering Stanford University

ISBN: (纸本)9781467374439

This paper addresses high-precision Mars entry guidance and control approach via sliding mode control(SMC) and Extended State Observer(ESO). First, differential flatness(DF) approach is applied to the dynamic equations of the entry *** presented control law requires no information on high uncertainties that are estimated by ESO. Finally, simulation results are presented to demonstrate the effectiveness of the proposed approach.

关键词： Mars entry guidance and control,sliding mode control,Extended State Observer,Monte Carlo

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Guest Editorial for Special Issue on Cyber-Physical Systems

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IEEE/CAA Journal of Automatica Sinica 2015年第3期2卷 233-234页

作者： Youxian Sun Xinping Guan Jiming Chen Yilin Mo Zhejiang University the Chinese Academy of Engineering the Institute of Industrial Process Control and the National Engineering Research Center of Industrial Automation Zhejiang University Department of Automation Shanghai Jiao Tong University University Research Management Office Shanghai Jiao Tong University the Key Laboratory of Systems Control and Information Processing Ministry of Education of China the prestigious Innovative Research Team of the National Natural Science Foundation of China(NSFC) Department of Control Science and Engineering group of Networked Sensing and Control in the State Key laboratory of Industrial Control Technology Institute of Industrial Process Control at Zhejiang University the School of Electrical and Electronic Engineering at Nanyang Technological University

Ⅰ.Introduction CYBER-PHYSICAL system is a system of collaborating computational elements to control physical *** coordination and the tight link between computational,virtual and physical resources in cyber-physical system will have a pervasive effect on our everyday *** development of cyber-physical system will create new opportunities for the introduction of services that will enhance the quality of life

关键词： for WSAN Guest Editorial for Special Issue on Cyber-Physical Systems of into on WSN is

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Attitude synchronization of multiple rigid bodies in SE(3) over proximity networks

Attitude synchronization of multiple rigid bodies in SE(3) o...

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第35届中国控制会议

作者： Juan Deng Zhixin Liu Lin Wang John S.Baras Key Laboratory of Systems and Control Academy of Mathematics and Systems ScienceCAS Department of Automation Shanghai Jiao Tong Universityand the Key Laboratory of System Control and Information ProcessingMinistry of Education Department of Electrical and Computer Engineering and the Institute for Systems Research University of MarylandCollege Park

ISBN: (纸本)9781509009107

This paper investigates the attitude synchronization of a group of moving rigid bodies whose states including positions and rotation matrices evolve in the Lie group SE(3).The commonly used circular neighborhood is adopted,and the neighbor graphs are described by proximity *** order to avoid introducing discussions on the abrupt changes of neighbor graphs,a dwell time is *** distributed sampled-data control law for the angular velocity is *** the assumptions on the initial states,we provide sufficient conditions for the attitude synchronization of multiple rigid body *** with the existing results,our condition depends only on the neighborhood radius,the moving velocity and the dwell time.

关键词： rigid body SE(3) attitude synchronization sampled-data control proximity network

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Soil resistivity study and simulation with finite elements method

Soil resistivity study and simulation with finite elements m...

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IEEE International Conference on Environment and electrical engineering

作者： Thiago Martins Pereira Rodrigo Alves de Lima Viviane Margarida Gomes Sóstenes Gutembergue Aylton José Alves Wesley Pacheco Calixto Electrical Mechanical & Computer Engineering School EMC Federal University of Goias UFG Experimental & Technological Research and Study Group NExT Federal Institute of Goias IFG Program in Electronic Systems and Automation PGEA University of Brasilia UnB

ISBN: (纸本)9781509023219

This work purpose is to study the influence of concrete buried structures in grounding systems. Comparison of soil characteristics between dry and rainy seasons and soil electrical behavior was carried out. Simulations in finite element method was performed for tree layer stratified soil and the electrostatic equipotential surfaces were mapped into the region of interest.

关键词： Grounding systems finite elements method climate seasonality

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Temperature-dependent demagnetization nonlinear Wiener model with neural network for PM Synchronous Machines in electric vehicle

Temperature-dependent demagnetization nonlinear Wiener model...

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International Conference on electrical Machines and Systems

作者： Qian Zhang Zhenglei Ma Guoli Li Zhe Qian Xiwen Guo School of Electrical Engineering and Automation Anhui University Hefei China National Engineering Laboratory of Energy-Saving Motor & Control Technology Anhui University Hefei China Collaborative Innovation Center of Industrial Energy-Saving and Power Quality Control Anhui University Hefei China Anhui Province Laboratory of Industrial Energy-Saving and Safety Anhui University Hefei China

ISBN: (纸本)9781467388634

The inevitable temperature raise leads to the demagnetization of permanent magnet synchronous motor (PMSM), that is undesirable in the application of electrical vehicle. This paper presents a nonlinear demagnetization model taking into account temperature with the Wiener structure and neural network characteristics. The remanence and intrinsic coercivity are chosen as intermediate variables, thus the relationship between motor temperature and maximal permanent magnet flux is described by the proposed neural Wiener model. Simulation and experimental results demonstrate the precision of temperature dependent demagnetization model. This work makes the basis of temperature compensation for the output torque from PMSM.

关键词： PMSM demagnetization temperature BP Neural Network Nonlinear Wiener model

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Sensorless vector control system of induction motor by nonlinear full-order observer

Sensorless vector control system of induction motor by nonli...

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IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Jin Cao Guoli Li Xing Qi Qiubo Ye Qian Zhang Qunjing Wang School of Electrical Engineering and Automation Anhui University Hefei China National Engineering Laboratory of Energy-Saving Motor & Control Technology Anhui University Hefei China Anhui Province Laboratory of Industrial Energy-Saving and Safety Anhui University Hefei China Ministry of Education Anhui University Hefei China

ISBN: (纸本)9781467386456

A novel design of a nonlinear full-order observer for sensorless vector controlled induction motors is proposed in this paper. It is known that the speed-sensorless vector control drive system of induction motors does not perform satisfactorily at the low speed, which is caused by the voltage model and its emf calculation of motors. The nonlinear full-order observer system abandons the voltage model and its emf calculation of motors, makes use of the motor as a reference model and the stator model together with the current model as an adjustable model. In this paper, the model reference adaptive system (MRAS) is proposed, and then the nonlinear full-order observer system is presented based on the MRAS. Finally, several simulations verify feasibility of the proposed strategy.

关键词： Stators Induction motors Observers Mathematical model Adaptation models Rotors Sensorless control

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Output feedback disturbance rejection for a class of linear systems with input delay via DOBC approach

Output feedback disturbance rejection for a class of linear ...

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Chinese control Conference (CCC)

作者： Chunyan Wang Jun Yang Zongyu Zuo Zhengtao Ding School of Electrical and Electronic Engineering The University of Manchester Manchester Manchester GB School of Automation Southeast University Key Laboratory of Measurement and Control of CSE Southeast University Nanjing Jiangsu CN The Seventh Research Division and Science and Technology on Aircraft Control Laboratory Beihang University Beijing CN

This paper addresses the disturbance rejection problem for a class of linear systems in the presence of input delay via DOBC approach. Truncated predictor feedback method is applied to deal with the input delay based on the estimate of state and external disturbance, and further endeavours are made to ensure the extra integral terms of the system state and external disturbance due to the input delay are properly considered using Krasovskii functionals. With the tool of Lyapunov functions, the stability of the closed-loop system is proved under sufficient conditions. a simulation study is given to validate the proposed control design.

关键词： Delays Linear systems Stability analysis Electronic mail control design Delay effects

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Design of a flexure-based XY positioning stage with balanced axial forces on decoupling modules

Design of a flexure-based XY positioning stage with balanced...

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International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)

作者： Zhen Zhang Zhiqing Liu Peng Yan Beijing Key Lab of Precision/Ultra-precision Manufacturing Equipments and Control Tsinghua University Beijing China State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou China Department of Mechanical Engineering Beijing China School of Automation Science and Electrical Engineering Beihang University Beijing China School of Mechanical Engineering Shandong University Jinan China

ISBN: (纸本)9781509029464

This paper presents a novel beam flexure-based XY positioning stage with an axial force balanced design of double parallelogram decoupling modules. By mean of connecting two decoupling modules along the same actuation axis, the axial forces are evenly applied to each side of the motion stage. Therefore the in-plane rotation can be significantly restricted. Also a redundant constraint is proposed to the guidance module to restrict its rotational motions. The monolithical fabrication of the spatial configuration of the proposed mechanism can be resorted to additive manufactured technology. Numerical simulation results validate the effectiveness of the proposed XY positioning stage.

关键词： Force Actuators Joining processes Numerical simulation Nanopositioning Kinematics Stress

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Study on Active Suppression control of Drivetrain Oscillations in an Electric Vehicle

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IOP Conference Series: Materials Science and engineering 2017年第1期224卷

作者： Lei Huang Ying Cui Tianjin Key Laboratory of Information Sensing and Intelligent Control School of Automation and Electrical Engineering Tianjin University of Technology and Education Tianjin China Urban Communications Engeneering CO.LTD of CCCC First Harbor Engeneering CO.LTD Tianjin China

Due to the low damping in a central driven electric vehicle and lack of passive damping mechanisms as compared with a conventional vehicle, the vehicle may endure torsional vibrations which may deteriorates the vehicle's drivability. Thus active damping control strategy is required to reduce the undesirable oscillations in an EV. In this paper, the origin of the vibration and the design of a damping control method to suppress such oscillations to improve the drivability of an EV are studied. The traction motor torque that is given by the vehicle controller is adjusted according to the acceleration rate of the motor speed to attenuate the resonant frequency. Simulations and experiments are performed to validate the system. The results show that the proposed control system can effectively suppress oscillations and hence improve drivability.

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Improved RRTConnect Algorithm for UAV Route Planning

Improved RRTConnect Algorithm for UAV Route Planning

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2015 International Conference on Advances in Mechanical engineering and Industrial Informatics(AMEII 2015)

作者： Xie Ke Liu Zheng-Hua Wen Nuan School of Automation Science and Electrical Engineering Beihang University Science and Technology on Aircraft Control Laboratory Beihang University

ISBN: (纸本)9781510806481

In the research of route planning, better balance between planning time and route quality should be achieved to reduce UAVs cost. This article is based on basic RRT（Rapidly-exploring Random Trees） and proposes an improved RRTonnect algorithm which improves the way generating new node of the tree, and changes the parameters by the fuzzy inference according to the circumstance. Simulation and experiments prove that the improved RRTonnect algorithm improves the efficiency of the planning and optimizes the route.

关键词： Route planning RRT UAV Comparison method Fuzzy Inference

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